GLAUKOS Corp company insiders have only been selling lately: eight insiders trimmed about $69.3 million of stock over 12 months, with no open-market purchases.
Keep in mind most insider selling is routine — stock-based pay has to be converted to cash at some point.
Quarter by quarter: 5 quarters in a row of net selling by insiders. Insiders bought in 0 of the last 7 full quarters. 366 investment managers listed GKOS in their latest 13F filings (Q2 2026); more funds bought than sold.
| Filed | Insider | Role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|
| Oct 7, 2026 | Navratil Tomas | Executive Officer | Sell | 312 | $165.60 | $52K | SEC |
| Oct 7, 2026 | Navratil Tomas | Executive Officer | Sell | 888 | $163.93 | $146K | SEC |
| Oct 7, 2026 | Navratil Tomas | Executive Officer | Sell | 327 | $164.78 | $54K | SEC |
| Sep 28, 2026 | Navratil Tomas | Executive Officer | Sell | 167 | $151.70 | $25K | SEC |
| Sep 28, 2026 | Navratil Tomas | Executive Officer | Sell | 136 | $152.71 | $21K | SEC |
| Sep 28, 2026 | Navratil Tomas | Executive Officer | Sell | 229 | $154.24 | $35K | SEC |
| Sep 28, 2026 | Navratil Tomas | Executive Officer | Sell | 1,083 | $154.88 | $168K | SEC |
| Sep 18, 2026 | Navratil Tomas | Executive Officer | Sell | 103 | $163.20 | $17K | SEC |
| Sep 18, 2026 | Navratil Tomas | Executive Officer | Sell | 345 | $164.60 | $57K | SEC |
| Sep 18, 2026 | Navratil Tomas | Executive Officer | Sell | 191 | $166.20 | $32K | SEC |
| Sep 18, 2026 | Navratil Tomas | Executive Officer | Sell | 4 | $172.00 | $688 | SEC |
| Sep 18, 2026 | Navratil Tomas | Executive Officer | Sell | 120 | $168.38 | $20K | SEC |
| Sep 18, 2026 | Navratil Tomas | Executive Officer | Sell | 234 | $170.95 | $40K | SEC |
| Sep 18, 2026 | Navratil Tomas | Executive Officer | Sell | 460 | $167.32 | $77K | SEC |
| Sep 1, 2026 | Navratil Tomas | Executive Officer | Sell | 6,091 | $181.19 | $1.1M | SEC |
In the last 12 months GLAUKOS Corp insiders made open-market purchases worth about $0 and sales worth about $69.3 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
The most recent open-market insider trade in GKOS was filed on 2026-10-07.
366 investment managers reported holding GKOS in SEC Form 13F filings for Q2 2026.
No congressional trades in GKOS were reported in the past two years. The full list is free on CapitalSnitch.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).